CN103212579A - Six-roller mill - Google Patents
Six-roller mill Download PDFInfo
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- CN103212579A CN103212579A CN2013101376737A CN201310137673A CN103212579A CN 103212579 A CN103212579 A CN 103212579A CN 2013101376737 A CN2013101376737 A CN 2013101376737A CN 201310137673 A CN201310137673 A CN 201310137673A CN 103212579 A CN103212579 A CN 103212579A
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Abstract
The invention provides a six-roller mill. The six-roller mill comprises an upper supporting roller, an upper middle roller, an upper working roller, a lower working roller, a lower middle roller, a lower supporting roller and a hydraulic transverse thrust device. The upper supporting roller, the upper middle roller, the upper working roller, the lower working roller, the lower middle roller and the lower supporting roller are sequentially ranked from top to bottom and respectively supported on respective bearing seats through rotating bearings. The upper supporting roller and the lower supporting roller are symmetrically arranged opposite to a rolling line of the six-roller mill. The upper middle roller and the lower middle roller are symmetrically arranged opposite to the rolling line. The upper working roller and the lower working roller are symmetrically arranged opposite to the rolling line. A gap of a rotating center line of the upper middle roller and the lower middle roller and a rotating center line of the upper working roller and the lower working roller is smaller than one millimeter in the horizontal direction. The hydraulic transverse thrust device supports the bearing seats from side surfaces of the bearing seats of the upper working roller and the lower working roller. The six-roller mill can adopt a small roller diameter of a working roller when high-resistant materials are rolled. The six-roller mill has the advantages that product quantity and product quality are high, structure is simple, and production cost is evidently lowered.
Description
Technical field
The present invention relates to a kind of six-high cluster mill, be specifically related to the six-high cluster mill of the cold belt steel rolling of high resistance materials.
Background technology
Six-high cluster mill is a kind of board rolling mainstream model of technology maturation, has output height, end product quality height, consumption is less, the device fabrication difficulty is less and maintenance is less advantage.Its primary structure comprises roll line adjusting device 101, top backing up roll 102, last intermediate calender rolls 103, intermediate calender rolls roll bending and shifting roller arrangement 104, top working roll 105, work roll bending hydraulic cylinder 106, work roll bending piece 107, bottom working roll 108, following intermediate calender rolls 109, frame 110, lower support roller 111 and roll gap adjustment hydraulic cylinder 112 as shown in Figure 1.Roll line adjusting device 101 is used to adjust height of rolling line.Intermediate calender rolls roll bending and shifting roller arrangement 104 is used to adjust plate shape.Work roll bending hydraulic cylinder 106 is used to adjust plate shape.Roll gap is adjusted hydraulic cylinder 112 and is used to adjust the rolled piece exit thickness.But conventional six-roll cold mill working roll can not be done too for a short time, the footpath of its working roll (barrel diameter) wide (strip width) is not less than 0.25 than generally, when the material of rolling high drag such as middle high grade silicon steel, stainless steel, high-strength steel and be difficult to be competent at during the band steel of specification as thin as a wafer, this adopts multi-roll mill rolling often, and typical type is 20 roller mills and 18 roller mills.Compare with six-high cluster mill, multi-roll mill have mill speed low, yield poorly, consume big, troublesome poeration, the complicated shortcoming that manufacture difficulty is big and maintenance is big of equipment, if can adopt six-high cluster mill rolling, tangible economic benefit will be arranged.
The rolling above-mentioned material of six-high cluster mill to be used, working roll roller footpath need be significantly reduced.Conventional six-high cluster mill top working roll 105, bottom working roll 108, top backing up roll 102 and lower support roller 111 are positioned at the framework window center, the rotation centerline of above-mentioned 4 rollers overlaps in the horizontal direction, the rotation centerline of last intermediate calender rolls 103 and following intermediate calender rolls 109 overlaps in the horizontal direction, and the rotation centerline design with respect to top working roll 105, bottom working roll 108, top backing up roll 102 and lower support roller 111 has an offset distance, and this offset distance is 5 to 6 millimeters usually.Roll-force produces horizontal component with breaker roll under wobbler action, to eliminate the gap between roll chock and frame, guarantees the position stability of roller system when rolling.This eccentric force is very big, for the six-high cluster mill of working roll transmission, is the chief component of working roll horizontal force.Under the effect of working roll body of roll horizontal force, the increasing that reduces to bring its horizontal amount of deflection in roller footpath, and then production board shape is worsened.
Existing a solution is to adopt the HS milling train, i.e. intermediate calender rolls transmission is also made the form that can move horizontally with working roll, thereby the offset distance of adjusting between working roll and the intermediate calender rolls when rolling significantly reduces its roller footpath in the hope of significantly reducing the working roll horizontal force.Because the fluctuation of rolling parameter needs in time to adjust the little horizontal force state that offset distance can keep working roll at any time.This method has kept the major advantage of six-high cluster mill, but structure and control are complicated, and because roll torque is provided by the frictional force between intermediate calender rolls and working roll, require the roughness of the working roll body of roll can not be too little, thereby reduced the surface quality of finished strip, significant disadvantages has also been arranged.
Summary of the invention
Technical problem to be solved by this invention is: the six-high cluster mill that can adopt little working roll roller footpath when a kind of material of rolling high drag is provided.
The invention provides a kind of six-high cluster mill that adopts the working roll transmission, comprise: top backing up roll, last intermediate calender rolls, top working roll, bottom working roll, following intermediate calender rolls, lower support roller and hydraulic pressure lateral thruster, described top backing up roll, last intermediate calender rolls, top working roll, bottom working roll, following intermediate calender rolls and lower support roller are arranged in order from top to bottom and are supported on separately the bearing block by swivel bearing respectively, described top backing up roll and lower support roller are with respect to the roll line symmetric arrangement of described six-high cluster mill, described upward intermediate calender rolls and following intermediate calender rolls are with respect to described roll line symmetric arrangement, described top working roll and bottom working roll are with respect to described roll line symmetric arrangement, on described, following intermediate calender rolls and last, the rotation centerline of bottom working roll is no more than 1 millimeter in the horizontal direction at interval, and described hydraulic pressure lateral thruster is from the described bearing block of bearing block lateral support of described top working roll and bottom working roll.
The rotation centerline of described upper and lower intermediate calender rolls and upper and lower working roll is no more than 0.3 millimeter in the horizontal direction at interval.
The rotation centerline of described upper and lower intermediate calender rolls and upper and lower working roll is no more than 0.2 millimeter in the horizontal direction at interval.
The rotation centerline of described upper and lower intermediate calender rolls and upper and lower working roll aligns in the horizontal direction.
The rotation centerline of described upper and lower backing roll and the rotation centerline of upper and lower intermediate calender rolls are arranged in the horizontal direction at interval.
Described hydraulic pressure lateral thruster comprises movable liner plate, thruster hydraulic cylinder and the first work roll bending piece, described movable liner plate is promoted by the thruster hydraulic cylinder that is embedded in the described work roll bending piece, described movable liner plate is connected with the bearing block of described working roll, makes described movable liner plate clamp the bearing block of working roll when rolling.
The opposite side of the bearing block of described working roll is established fixedly liner plate, and described fixedly liner plate is fixed on the second work roll bending piece on the first work roll bending piece opposite
Beneficial effect of the present invention mainly is:
1. do not have the offset distance design and can produce mechanics effect, compare the working roll horizontal force with conventional six-high cluster mill and descend more than 2/3, thereby when adopting little working roll, significantly reduce the horizontal amount of deflection of working roll.
2. do not have offset distance design and also can produce geometric effect, compare with the conventional six-high cluster mill of iso-deflection with working roll, it is about 4/5 that the adverse effect of plate shape is descended, and then strengthened the allowable horizontal amount of deflection of working roll, makes working roll can do forr a short time.
3. thruster hydraulic cylinder level compresses working roll bearing block to guarantee the position stability of working roll when rolling.
4. the big offset distance between intermediate calender rolls and backing roll can guarantee the position stability of intermediate calender rolls when rolling.
Description of drawings
Fig. 1 is a six-high cluster mill schematic diagram in the prior art.
Fig. 2 is six-high cluster mill schematic diagram among the present invention.
Fig. 3 for six-high cluster mill P among the present invention to partial schematic diagram.
Fig. 4 for six-high cluster mill B-B among the present invention to partial schematic diagram.
The specific embodiment
In order to understand the present invention better, technical scheme of the present invention is described further below in conjunction with embodiment and accompanying drawing.Shown in Fig. 2-4, six-high cluster mill comprises roll line adjusting device 201, top backing up roll 202, upward intermediate calender rolls 203, intermediate calender rolls roll bending and shifting roller arrangement 204, top working roll 205, work roll bending hydraulic cylinder 206, work roll bending piece 207, bottom working roll 208, following intermediate calender rolls 209, frame 210, lower support roller 211, roll gap are adjusted hydraulic cylinder 212 and hydraulic pressure lateral thruster.With the same in the prior art, roll line adjusting device 201 is used to adjust height of rolling line.Intermediate calender rolls roll bending and shifting roller arrangement 204 is used to adjust plate shape.Work roll bending hydraulic cylinder 206 is used to adjust plate shape.Roll gap is adjusted hydraulic cylinder 212 and is used to adjust the rolled piece exit thickness.
Wherein, top backing up roll 202, go up intermediate calender rolls 203, top working roll 205, bottom working roll 208, intermediate calender rolls 209 and lower support roller 211 is arranged in order from top to bottom and be supported on separately the bearing block by swivel bearing respectively down, top backing up roll 202 and lower support roller 211 are with respect to the roll line symmetric arrangement of six-high cluster mill, last intermediate calender rolls 203 and following intermediate calender rolls 209 are with respect to the roll line symmetric arrangement, and top working roll 205 and bottom working roll 208 are with respect to described roll line symmetric arrangement.The rotation centerline of six-high cluster mill top working roll 205, bottom working roll 208, last intermediate calender rolls 203 and following intermediate calender rolls 209 overlaps in the horizontal direction, promptly being designed to does not have the offset distance structure, top backing up roll 202 and lower support roller 211 are positioned at the framework window center, and the rotation centerline of top backing up roll 202 and lower support roller 211 overlaps in the horizontal direction.Last intermediate calender rolls 203, following intermediate calender rolls 209 are provided with certain offset distance in the horizontal direction with the rotation centerline of top backing up roll 202, lower support roller 211.For the power on the offset by the level of direction, the hydraulic pressure lateral thruster tightens described bearing block from the bearing block lateral support of described top working roll and bottom working roll simultaneously.
Described hydraulic pressure lateral thruster comprises movable liner plate 216, thruster hydraulic cylinder 214 and the first work roll bending piece 207-1, movable liner plate 216 is promoted by the thruster hydraulic cylinder 214 that is embedded in the described work roll bending piece 207, movable liner plate 216 is connected with the bearing block of working roll, makes described movable liner plate 216 clamp the bearing block of working roll when rolling.The bearing block that clamps working roll when rolling can guarantee the position stability of working roll when rolling, then unclamps working roll bearing block during roll change so that extract roll vertically out.
The opposite side of the bearing block of described working roll is established fixedly liner plate 219, and described fixedly liner plate 219 is fixed on the second work roll bending piece 207-2 on the first work roll bending piece 207-1 opposite.
The first work roll bending piece 207-1 of movable liner plate 216 sides goes up and embeds and fixing I-shaped work roll bending cylinder piece 213, dress work roll bending hydraulic cylinders 206 in the work roll bending cylinder piece 213, and be provided with lining 215 so that to the piston rod guiding of thruster hydraulic cylinder 214.Subdivision is that the card key 217 of two halves is fixed on movable liner plate 216 on the piston rod of thruster hydraulic cylinder 214, and card key gland 218 will block key 217 and limit the position.
In the above-described embodiments, the coincidence of aliging in the horizontal direction of six-high cluster mill top working roll 205, bottom working roll 208, the rotation centerline of going up intermediate calender rolls 203 and following intermediate calender rolls 209, can obtain to design general this moment and device fabrication effect easily, and the mechanics effect that does not have the offset distance design also is close to the best, can obtain minimum working roll footpath (barrel diameter) wide (strip width) ratio.Yet, when the rotation centerline of top working roll 205 and bottom working roll 208 rotation centerlines and last intermediate calender rolls 203 and following intermediate calender rolls 209 is provided with small offset distance, for example 0.2 millimeter with interior or 0.3 millimeter in, the mechanics effect of no offset distance design may reach best.As optional embodiment, when the rotation centerline of top working roll 205 and bottom working roll 208 rotation centerlines and last intermediate calender rolls 203 and following intermediate calender rolls 209 was no more than 1 millimeter, mechanics effect and geometric effect obtained directly wide ratio of less working roll thereby can both obtain preferably.
The present invention aligns top working roll 205 and bottom working roll 208 rotation centerlines in the horizontal direction with the rotation centerline of last intermediate calender rolls 203 and following intermediate calender rolls 209 or is set to the favourable little deviation of direction, with bigger offset distance of design between described intermediate calender rolls and described backing roll, and the hydraulic pressure lateral thruster is set in corresponding axis bearing side, the bearing block that clamps working roll when rolling then unclamps working roll bearing block during roll change so that extract roll vertically out to guarantee the position stability of working roll when rolling.High grade silicon steel, high-strength steel, titanium alloy, nickel-base alloy and part stainless steel in can producing with lower cost by the milling train of this method design have been inherited whole advantages of conventional six-high cluster mill and have been avoided the shortcoming of HS milling train.
More than explanation only is an Application Example of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalence of being done according to the present patent application claim changes, and still belongs to protection scope of the present invention.
Claims (7)
1. six-high cluster mill, comprise: top backing up roll, last intermediate calender rolls, top working roll, bottom working roll, following intermediate calender rolls, lower support roller and hydraulic pressure lateral thruster, described top backing up roll, last intermediate calender rolls, top working roll, bottom working roll, following intermediate calender rolls and lower support roller are arranged in order from top to bottom and are supported on separately the bearing block by swivel bearing respectively, described top backing up roll and lower support roller are with respect to the roll line symmetric arrangement of described six-high cluster mill, described upward intermediate calender rolls and following intermediate calender rolls are with respect to described roll line symmetric arrangement, described top working roll and bottom working roll are with respect to described roll line symmetric arrangement, it is characterized in that: on described, following intermediate calender rolls and last, the rotation centerline of bottom working roll is no more than 1 millimeter in the horizontal direction at interval, and described hydraulic pressure lateral thruster is from the described bearing block of bearing block lateral support of described top working roll and bottom working roll.
2. six-high cluster mill according to claim 1, its feature is no more than 0.3 millimeter in the horizontal direction at interval in, the rotation centerline of described upper and lower intermediate calender rolls and upper and lower working roll.
3. six-high cluster mill according to claim 1, its feature is no more than 0.2 millimeter in the horizontal direction at interval in, the rotation centerline of described upper and lower intermediate calender rolls and upper and lower working roll.
4. six-high cluster mill according to claim 1, its feature in, the rotation centerline of described upper and lower intermediate calender rolls and upper and lower working roll aligns in the horizontal direction.
5. six-high cluster mill according to claim 1, its feature in, the rotation centerline of described upper and lower backing roll and the rotation centerline of upper and lower intermediate calender rolls are arranged at interval in the horizontal direction.
6. six-high cluster mill according to claim 1, its feature in, described hydraulic pressure lateral thruster comprises movable liner plate, thruster hydraulic cylinder and the first work roll bending piece, described movable liner plate is promoted by the thruster hydraulic cylinder that is embedded in the described work roll bending piece, described movable liner plate is connected with the bearing block of described working roll, makes described movable liner plate clamp the bearing block of working roll when rolling.
7. six-high cluster mill according to claim 6, its feature in, the opposite side of the bearing block of described working roll is established fixedly liner plate, described fixedly liner plate is fixed on the second work roll bending piece on the first work roll bending piece opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310137673.7A CN103212579B (en) | 2013-04-19 | 2013-04-19 | A kind of six-high cluster mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310137673.7A CN103212579B (en) | 2013-04-19 | 2013-04-19 | A kind of six-high cluster mill |
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| CN103212579A true CN103212579A (en) | 2013-07-24 |
| CN103212579B CN103212579B (en) | 2016-01-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920711A (en) * | 2014-04-22 | 2014-07-16 | 中冶南方工程技术有限公司 | Roll shifting device driven through intermediate rolls |
| CN103962378A (en) * | 2014-04-22 | 2014-08-06 | 中冶南方工程技术有限公司 | Independent roll replacement device of upper middle roll |
| CN104209325A (en) * | 2014-09-10 | 2014-12-17 | 中冶南方工程技术有限公司 | Large roll, small roll and bent roll system suitable for double-stand flattening and double cold reduction unit |
| CN107790495A (en) * | 2017-11-28 | 2018-03-13 | 中冶南方工程技术有限公司 | A kind of metal strip rolling mill of the collateral runner of band |
| CN108213077A (en) * | 2017-12-29 | 2018-06-29 | 武汉钢铁有限公司 | The method of cold rolling >=2.5%Si high silicon steel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920711A (en) * | 2014-04-22 | 2014-07-16 | 中冶南方工程技术有限公司 | Roll shifting device driven through intermediate rolls |
| CN103962378A (en) * | 2014-04-22 | 2014-08-06 | 中冶南方工程技术有限公司 | Independent roll replacement device of upper middle roll |
| CN103962378B (en) * | 2014-04-22 | 2016-03-02 | 中冶南方工程技术有限公司 | The independent changing rig of intermediate calender rolls in one |
| CN103920711B (en) * | 2014-04-22 | 2016-03-30 | 中冶南方工程技术有限公司 | A kind of roll-shifting device of intermediate roller driven |
| CN104209325A (en) * | 2014-09-10 | 2014-12-17 | 中冶南方工程技术有限公司 | Large roll, small roll and bent roll system suitable for double-stand flattening and double cold reduction unit |
| CN107790495A (en) * | 2017-11-28 | 2018-03-13 | 中冶南方工程技术有限公司 | A kind of metal strip rolling mill of the collateral runner of band |
| CN108213077A (en) * | 2017-12-29 | 2018-06-29 | 武汉钢铁有限公司 | The method of cold rolling >=2.5%Si high silicon steel |
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| CN103212579B (en) | 2016-01-20 |
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